Costas loop carrier recovery device

Details Costas loop carrier recovery device Costas loop carrier recovery device

1990-08-29

1991-12-10

Grimm, Siegried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 17, 375120, H03L 7087, H03L 7093

Patent

active

050721968

ABSTRACT:
A Costas loop carrier recovery device with particular application to communications with spacecraft includes a voltage-controlled oscillator. Two filters having different characteristics are connected to the oscillator by a loop filter via two circuits:

REFERENCES:
patent: 3768030 (1973-10-01), Brown et al.
patent: 4072909 (1978-02-01), Citta
patent: 4336616 (1982-06-01), Carson et al.
patent: 4713630 (1987-12-01), Matthews
IEEE Transactions on Consumer Electronics, vol. CE-23, No. 3, Aug. 1977, pp. 358-365, New York, U.S.A.; R. Citta: "Frequency and Phase Lock Loop".

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